I imagine there must be a place in hell where some lost souls are damned to watch movies like Rosaline for all eternity (you have to choose one movie and that's it, you gotta stick to it, let's say for the next couple of millenniums, 24/7 of course). The production is okay, the actors do solid, but the whole movie is boring, got no wit, the genre of comedy is tortured to death by a weak script and most predictable "humor". The initial idea of Rosaline is interesting but that's more or less about it - the rest is simply, I wouldn't say bad (the actors save the bad script to a certain degree), but rather a mind-numbing bore. Maybe there is some audience who likes a movie like this but I don't belong to those. Hopefully the master of the pits of hell does not read this review, so I'm not condemned to watch this one for all eternity someday ;)